Method to change BIOS value

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

hi,
I need to change the bios value at run time . Is there any API available.

Thanks and regards,
KSMH
 
We have discussed the BIOS access on embedded devices numerous times in the NG.
For instance, read through this thread:
http://groups.google.com/group/micr...d/browse_thread/thread/26ae0402f1c7adf1?hl=en

The baseline: you are doing a user mode application, you can only get down to BIOS IO registers with a helper driver like DirectIO
or similar (here I listed a few: http://km-dev.blogspot.com/2007/03/xpe-tip5-direct-io-operations-from.html).
Your best bet is a driver. Although even there it may not be that easy to access particular BIOS functions. Read DDK docs for more
info.
 
Thanks again .

I need to go through the link


KM said:
We have discussed the BIOS access on embedded devices numerous times in the NG.
For instance, read through this thread:
http://groups.google.com/group/micr...d/browse_thread/thread/26ae0402f1c7adf1?hl=en

The baseline: you are doing a user mode application, you can only get down to BIOS IO registers with a helper driver like DirectIO
or similar (here I listed a few: http://km-dev.blogspot.com/2007/03/xpe-tip5-direct-io-operations-from.html).
Your best bet is a driver. Although even there it may not be that easy to access particular BIOS functions. Read DDK docs for more
info.
Click to expand...
 
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